Never mind. That link I pasted originally was in reference to some web app. The real 406 says:

Originally Posted by http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html

10.4.7 406 Not Acceptable

The resource identified by the request is only capable of generating response entities which have content characteristics not acceptable according to the accept headers sent in the request.

Unless it was a HEAD request, the response SHOULD include an entity containing a list of available entity characteristics and location(s) from which the user or user agent can choose the one most appropriate. The entity format is specified by the media type given in the Content-Type header field. Depending upon the format and the capabilities of the user agent, selection of the most appropriate choice MAY be performed automatically. However, this specification does not define any standard for such automatic selection.

Note: HTTP/1.1 servers are allowed to return responses which are
not acceptable according to the accept headers sent in the
request. In some cases, this may even be preferable to sending a
406 response. User agents are encouraged to inspect the headers of
an incoming response to determine if it is acceptable.

If the response could be unacceptable, a user agent SHOULD temporarily stop receipt of more data and query the user for a decision on further actions.

Can you tell me exactly how I would make this "mod_security" rule change? I'm using the cpanel utility on my server to upload the file.

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EDIT:

I just found this:

If you’re using Apache web server (which mostly do), mod_security can be disabled by adding a specific in .htaccess file. Locate the .htaccess file in Apache web root directory (public_html or /var/www/ or others), if it does not exist, create a new file named .htaccess, and add in the following code:

SecFilterEngine Off
SecFilterScanPOST Off

The above entries in the .htaccess will disable the ModSecurity (mod_security) module for the domain.

That looks a LOT quicker and cleaner!
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Not having a cPanel install handy, I'm flying a bit blind, but I found this page:

It also mentions a file "modsec.user.conf”" that will be in your Apache config dir (different from distro to distro...) that controls the module. However, in your main apache config file (usually httpd.conf), is where the modules get loaded. You cn just comment it out and restart (or reload) the server.

Code:

# The following modules are considered as the default configuration.
# If you wish to disable one of them, you may have to alter other
# configuration directives.
#
# Change these at your own risk!
LoadModule actions_module modules/mod_actions.so
LoadModule alias_module modules/mod_alias.so
LoadModule auth_basic_module modules/mod_auth_basic.so
LoadModule authn_alias_module modules/mod_authn_alias.so
LoadModule authn_anon_module modules/mod_authn_anon.so
LoadModule authn_dbm_module modules/mod_authn_dbm.so
LoadModule authn_default_module modules/mod_authn_default.so

Etc. I don't have that module compiled into my Apache install, so I don't have the exact line you're looking for. You can just put a # before the line that's loading mod_security.

This is the best I got for you right this moment. If I find something better, I'll let you know.

Having doctored many times, and having changed devices, I have an idea to simply the process of restoring previously installed homebrew apps and patches after a doctor...

This is what I have been doing in the past:Backup (before doctor)
1. create a Saved Package List in Preware.
2. run Save/Restore to save the Saved Package List data from Preware to the USB partition.
(remember to do these two steps regularly)Restore (after doctor)
3. install Preware.
4. install Save/Restore.
5. restore Preware's Saved Package List info with Save/Restore.
6. run Preware and begin installing my previously installed homebrew apps and patches.

Would it be possible to do all of this within Preware, and possibly automate it?

I added this to my .htaccess file and it caused my whole website to fail to load.

Rod, when you get a chance, can you let me know possible causes of a 406 error when trying to install an IPK from a url (specifically the one I listed in my message above). I can download the IPK directly from a browser, but it gives the 406 error when using Preware.

I added this to my .htaccess file and it caused my whole website to fail to load.

Rod, when you get a chance, can you let me know possible causes of a 406 error when trying to install an IPK from a url (specifically the one I listed in my message above). I can download the IPK directly from a browser, but it gives the 406 error when using Preware.

I moved my file to dropbox and that's working. But if you're curious about the error I was receiving, you can test with the file (link in my original post).